Henkel LOCTITE 290 High-Strength Wicking Grade Threadlocker

Henkel LOCTITE 290 is a specialized, green, medium-to-high strength anaerobic adhesive designed for the locking and sealing of threaded fasteners. Firstly, this product features a unique wicking grade formula that allows the liquid to penetrate between engaged threads via capillary action. Because of its low viscosity, it eliminates the need to disassemble parts before application. Consequently, maintenance professionals rely on this penetrating adhesive for securing pre-assembled components in complex machinery.

Technical Performance and Chemical Properties

In addition to its wicking capabilities, LOCTITE 290 features a very low viscosity of 40.0 mPa·s. This thin consistency allows the adhesive to flow easily into tight spaces and seal porosities in welds, castings, and powdered metal parts. Regarding its curing process, the anaerobic chemistry ensures the product hardens only when confined in the absence of air between close-fitting metal surfaces. Furthermore, it offers a reliable fixture time of 20.0 minutes. Therefore, this threadlocker serves as a perfect solution for sealing leaks and preventing fastener loosening due to intense shock or vibration.

Durability and Thermal Resistance

Specifically, the manufacturer recommends this product for use with steel, stainless steel, and brass. Because the adhesive provides a medium-to-high strength bond, it typically requires heat for disassembly once fully cured. Moreover, the formula remains stable across a wide temperature range, operating effectively from -55.0 °C to 150.0 °C. As a result, users can secure instrumentation fasteners and electrical connectors even in environments subject to thermal fluctuations.

Additionally, the product is fluorescent under UV light, which assists in quality control by confirming successful penetration and application. It meets the performance requirements of Mil-S-46163A Type III Grade R, ensuring it stands up to rigorous industrial and military standards.

Common Industrial Applications

Because of its penetrating behavior, Henkel LOCTITE 290 appears in many high-stakes maintenance sectors. For example, technicians frequently use it on pumps, gearboxes, presses, and set screws that are already in place. Finally, the combination of high-strength locking and porosity sealing ensures that your assemblies remain secure and leak-free. This makes it a top-tier selection for any project that prioritizes ease of application and permanent structural security.